Patch "netfilter: nf_tables: reject destroy command to remove basechain hooks" has been added to the 6.8-stable tree

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This is a note to let you know that I've just added the patch titled

    netfilter: nf_tables: reject destroy command to remove basechain hooks

to the 6.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     netfilter-nf_tables-reject-destroy-command-to-remove.patch
and it can be found in the queue-6.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 215fac04bcb5388ec6f4b30dc214d6c484af1106
Author: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Date:   Thu Mar 21 01:27:50 2024 +0100

    netfilter: nf_tables: reject destroy command to remove basechain hooks
    
    [ Upstream commit b32ca27fa238ff83427d23bef2a5b741e2a88a1e ]
    
    Report EOPNOTSUPP if NFT_MSG_DESTROYCHAIN is used to delete hooks in an
    existing netdev basechain, thus, only NFT_MSG_DELCHAIN is allowed.
    
    Fixes: 7d937b107108f ("netfilter: nf_tables: support for deleting devices in an existing netdev chain")
    Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index ec6266c1972c0..00288b31f734c 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2932,7 +2932,8 @@ static int nf_tables_delchain(struct sk_buff *skb, const struct nfnl_info *info,
 	nft_ctx_init(&ctx, net, skb, info->nlh, family, table, chain, nla);
 
 	if (nla[NFTA_CHAIN_HOOK]) {
-		if (chain->flags & NFT_CHAIN_HW_OFFLOAD)
+		if (NFNL_MSG_TYPE(info->nlh->nlmsg_type) == NFT_MSG_DESTROYCHAIN ||
+		    chain->flags & NFT_CHAIN_HW_OFFLOAD)
 			return -EOPNOTSUPP;
 
 		if (nft_is_base_chain(chain)) {




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